Vatjlt-door and cast-iron safe



y ITEDSTATES PATENT OFFICE.

LEWIS LILLIE,` OF TROY, NEV YORK.

VAULT-DOOR AND CAST-IRON SAFE.

Specification of Letters Patent No. 24,646, dated July `5, 1859'.

T o all whom it may concern: n

Be it known that I, LEWIS LILLIE, of the city of Troy, county ofRensselaer, and State of New York, have invented anew and usefulImprovement in the Construction of Vault-Doors and Iron Safes; and I dohere- `by declare that the following is a full and the filling of thesame with refined cast iron-with round and hardened bars of caststeel,or any other material, so as to prevent any hole or holes being drilledinto and through the same, by `any burglar or burglars, when suchimprovements are or may be used, thereby preventing an entrance thereinin any Way or manner aforesaid.

To enable others skilled in the art to make and use my invention, I willnowdescribe its construct-ion, which is as follows, to wit: I use commongas pipes extending from side to side of vault or other doors, and fromcorner to corner of cast iron safes. These gas pipes or tubes arearranged as shown at (a and b) Fig. 2. The pipes or tubes (a, a, &c.)are arranged upon a line directly over each other. The `pipes or tubes(l), b, &c.), are, also, arranged upon'a line directly over each other,and which line of tubes are upon an angle with the line of tubes (a, a,&c.), and may be arranged so as to touch each other, or at a shortdistance apart from each as the case may be or require. These tubes orpipes (a, te.) are placed in the mold in the required positio of each. i

(c, c, &c.,) Fig. 1, are flat, wrought iron bars extending across thevault door, and safe the full width thereof, and parallelto and with theaforesaid pipes or tubes and at any required distance from the same asshall conform to and with the thickness of said vault door and safe, (d,cl, &c.,) are also, fiat, wrought iron bars passing at right angles thesaid bars (c, c, &c.,) and perpendiculail to and with the vault and safeaforesaid. The aforesaid flat, wrought iron bars as arranged form anetwork, while at the same time the said bars are perforated with holesas shown in my patents for improvements in cast iron safes, Sac.,patented July 15, 1851, and Sept. 7th, 1858.

W'hen 'the aforesaid pipes or tubes, and fiat, wrought iron bars arearranged as required in the mold and upon the core there of, then theoperation of pouring the molten lava takes place, which when done formsa thickness for vault doors, and safes, composed of fiat, wrought ironbars, of gas pipes or tubes, and of cast iron, chilled by means of thesaid pipes or tubes, and wrought iron bars. The said pipes or tubes (a,l), &c.,) are afterward filled with cast steel hardened, in the shape ofrods or round bars, or they may be filled with refined cast iron, orwith both the cast-steel and refined cast iron alternate. If the saidpipes be filled with cast-steel, hardened as aforesaid, the saidcast-steel bars 'or round rods are driven therein after the said vaultdoor, or safe containing them is cast, and become entirely cold. Thesaid steel bar or rods are also in a cold condition. If the said pipesor tubes are filled with refined cast iron, it is done after the castingof the vault door or safe containing the gas pipes or tubes aforesaid,and after the same has become fully and entirely cold, then the refinediron in a melted condition is poured therein, whereby the same becomeshardened or chilled by reason of the aforesaid pipes or tubes surroundedby cast-iron in a cold state or condition. The refined cast-iron forfilling the pipes or tubes as aforesaid is made thus by remeltingseveral times.

The aforesaid 4pipes or tubes may be filled with cast steel rods,hardened, and with refined cast iron using each with each alternate asaforesaid.

A vault door, and a safe made as hereinbefore described is strong andvalid against any entrance by any burglar or burglars by the use of thedrill or other like machinery, when the aforesaid pipes or tubes arefilled as aforesaid, the ends thereof are entirely covered up and overwith molten iron poured thereon, whereupon the surface thereof becomessmooth and durable as any other part of the said vault door, and safe,while at the same time the aforesaid pipes or tubes are fully andentirely hidden from sight in a strong and thorough manner as 'lling ofthe same With cast steel hardened, 10 aforesaid; Vault doors and safesoonstructor with refined cast iron as and for the pured and made as`aforesaid are strong and poses herein described andset forth.

durable, and proof as against burglatrs,` &c. l In testimony whereof Ihave hereunto set Having thus described my nventiomwhat my hand this31st day of May 1859. I elaimand desire to secure by Letters Pat- LEWISLILLIE. ent, isy Witnesses:

The arrangement and combination `of a HARVEY T. DAVIS,

series `of pipes or tubes (a, &C.,) and the MARCUS P. NORTON.

